CN110367086B - Irrigation method and server - Google Patents
Irrigation method and server Download PDFInfo
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- CN110367086B CN110367086B CN201910668674.1A CN201910668674A CN110367086B CN 110367086 B CN110367086 B CN 110367086B CN 201910668674 A CN201910668674 A CN 201910668674A CN 110367086 B CN110367086 B CN 110367086B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
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Abstract
The application discloses an irrigation method and a server, which are used for solving the problems of unreasonable irrigation method and low water resource utilization rate. The server determines the standard water demand of crops according to the climate data of the irrigation area; receiving images acquired by image acquisition equipment of each sub-irrigation area according to the pre-divided sub-irrigation areas, determining the types and growth stages of crops, and determining corresponding first irrigation demand factors; determining a second irrigation demand factor corresponding to each sub-irrigation area according to the relative soil moisture content of each sub-irrigation area from the sensor; and determining the actual water demand of the crops according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor, and sending an irrigation instruction to irrigation control equipment. According to the actual growth conditions of various crops and the relative water content of soil, the water demand meeting the growth requirements of the crops is determined, reasonable irrigation is realized, and the utilization rate of water resources is improved.
Description
Technical Field
The application relates to the technical field of crop planting, in particular to an irrigation method and a server.
Background
With the rapid development of the industrialization process, the contradiction between the shortage of agricultural water resources and the economic development is increasingly prominent. At present, in agricultural production, producers usually adopt modes such as spray irrigation and drip irrigation to replace the traditional modes such as flood irrigation and flood irrigation to irrigate crops so as to reduce waste of water resources and improve the utilization rate of agricultural water resources.
However, agricultural producers typically determine the amount of water used to irrigate crops based on past years of experience during irrigation. Moreover, the irrigation of crops is usually performed manually, and thus, the situation that the irrigation is forgotten or delayed may exist.
This kind too relies on artificial irrigation, extravagant a large amount of manpower resources, often also can waste water resource moreover, does not have according to crops current situation, irrigates the water yield that is fit for its growth to crops, is unfavorable for the good growth of crop, is unfavorable for improving the utilization ratio of water resource.
Disclosure of Invention
The embodiment of the application provides an irrigation method and a server, and aims to solve the problems that the irrigation method is unreasonable and the water resource utilization rate is low.
An irrigation method provided by the embodiment of the application comprises the following steps:
the method comprises the following steps that a server determines the standard water demand of crops in an irrigation area according to climate data of the irrigation area, wherein the climate data at least comprise air temperature, air humidity and a solar radiation value;
receiving images acquired by image acquisition equipment of each sub-irrigation area according to a plurality of sub-irrigation areas which are divided into the irrigation areas in advance, determining the types and the growth stages of crops of each sub-irrigation area according to the images or information sent by a user terminal, and determining a first irrigation demand factor corresponding to the growth stage of the crops, wherein the first irrigation demand factor corresponds to the standard water demand of the crops in the corresponding growth stage; the growth stage comprises a seedling stage, a growth stage and a maturation stage;
Respectively determining second irrigation demand factors corresponding to the sub-irrigation areas according to the relative soil moisture content obtained through the sensor, wherein the relative soil moisture content is corresponding to the sub-irrigation areas, and the second irrigation demand factors correspond to the standard water demand of crops in the corresponding sub-irrigation areas;
and determining the actual water demand of the crops in the corresponding growth stages and the corresponding sub-irrigation areas according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor, and sending irrigation instructions to irrigation control equipment corresponding to the irrigation areas according to the actual water demand, wherein the irrigation instructions comprise sub-irrigation area identifiers and the actual water demand of the sub-irrigation areas.
The receiver is used for receiving images acquired by the image acquisition equipment of each sub-irrigation area, information sent by a user terminal and the relative soil moisture content corresponding to the sub-irrigation areas acquired by the sensor according to the sub-irrigation areas divided into the irrigation areas in advance;
the processor is used for determining the standard water demand of crops in an irrigation area according to the climate data of the irrigation area, wherein the climate data at least comprises air temperature, air humidity and a solar radiation value; determining the type and the growth stage of crops in each sub-irrigation area according to a plurality of sub-irrigation areas which are divided into the irrigation areas in advance, images acquired by image acquisition equipment of each sub-irrigation area or information sent by a user terminal, and determining a first irrigation demand factor corresponding to the crops in the growth stage, wherein the first irrigation demand factor corresponds to the standard water demand of the crops in the corresponding growth stage; the growth stage comprises a seedling stage, a growth stage and a maturation stage; respectively determining a second irrigation demand factor corresponding to each sub-irrigation area according to the relative soil moisture content obtained through the sensor and corresponding to the sub-irrigation areas, wherein the second irrigation demand factor corresponds to the standard water demand of crops in the corresponding sub-irrigation areas; determining the actual water demand of the crops in the corresponding growth stages and the corresponding sub-irrigation areas according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor;
And the emitter is used for sending an irrigation instruction to irrigation control equipment corresponding to the irrigation area according to the actual water demand, wherein the irrigation instruction comprises a sub-irrigation area identifier and the actual water demand of the sub-irrigation area.
The embodiment of the application provides an irrigation method and a server, wherein the server can determine the standard water demand of crops according to the climate data of an irrigation area, determine a first irrigation demand factor according to the types and growth stages of the crops planted in each sub-irrigation area divided by the irrigation area, and determine a second irrigation demand factor according to the relative water content of soil for crop growth. And then, respectively determining the actual water demand corresponding to each sub-irrigation area according to the determined standard water demand, the first irrigation demand factor and the second irrigation demand factor, and sending an irrigation instruction to the irrigation control equipment corresponding to the irrigation areas. The irrigation method can be used for carrying out targeted irrigation on crops in different types and different growth stages and the crops in different sub-irrigation areas according to the actual growth conditions of the crops, can provide water quantity meeting the growth requirements of the crops for the crops in the different sub-irrigation areas of the same irrigation area, enables the crops to grow well, does not limit the types of the planted crops, can improve the utilization rate of water resources, avoids the waste of the water resources, can reduce the dependence on users, improves the automation degree, and realizes reasonable irrigation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a flow chart of an irrigation method provided by an embodiment of the present application;
fig. 2 is a schematic structural diagram of a server according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In this application embodiment, in order to use manpower sparingly, realize automatic irrigation, it can correspond in the irrigation zone has one or more irrigation control device (e.g., automatic water pump etc.), and each irrigation control device can be responsible for the irrigation of the crops in a plurality of sub-irrigation zones that divide into in the irrigation zone. Each irrigation control device can communicate with the server, receive the instruction sent by the server and irrigate the crops in the sub-irrigation areas in charge according to the received instruction. For convenience of explanation, the present application is described with reference to an irrigation area corresponding to an irrigation control device.
Fig. 1 is a flowchart of an irrigation method provided in an embodiment of the present application, which specifically includes the following steps:
s101: and the server determines the standard water demand of the crops in the irrigation area according to the climate data of the irrigation area.
In an embodiment of the present application, the server may determine a standard water demand for crops in an irrigation area based on climate data for the irrigation area. Wherein, the standard water demand refers to the water quantity required by ideal crops (representing green grassland with consistent height, vigorous growth and complete ground coverage) under the condition of sufficient water supply in the climatic environment of the irrigation area to meet plant transpiration and inter-plant evaporation. The server may reference the standard water demand determined from the climate data to the actual water demand of any crop in the irrigation area. The standard water demand represents the standard water demand of a crop over a preset time period, and may be one day, one week, or the like. Climate data may include air temperature, air humidity, solar radiation values, and the like.
Specifically, in an embodiment, the server may obtain an equipment identifier of the irrigation control equipment corresponding to the irrigation area, and determine the geographical location of the irrigation control equipment, that is, the geographical location of the irrigation area, according to a correspondence between the pre-stored equipment identifier and the geographical location. Alternatively, the irrigation control device may have a Global Positioning System (GPS) module, and the server may determine the geographical location of the irrigation control device through the GPS module of the irrigation control device. After the server acquires the geographical position of the irrigation area, the climate data corresponding to the geographical position can be acquired through the network. In another embodiment, the irrigation area may have sensors (e.g., temperature sensors, humidity sensors, etc.) therein for collecting climate data of the irrigation area. The server can acquire the climate data corresponding to the irrigation area through the sensors.
The server can obtain the climate data of the irrigation area according to W0＝2.3*10-3RaTmean +17.8(Tmax-Tmin)0.5+ lnb (Hmax-Hmin) to determine the daily standard water demand of the crop. Wherein, W0Is the standard water demand of crops, and the unit is mm/d, TmaxThe highest daily temperature, TminThe daily minimum temperature, TmeanIs the average air temperature, RaIs the value of solar radiation, HmaxHighest daily humidity, HminB is a second preset coefficient. Wherein the serviceThe device can verify the formula according to the historical data corresponding to the irrigation area so as to adjust the second preset coefficient b. The server may also determine the weekly standard water demand of the crop by adjusting the above formula according to other preset time periods, which is not limited in the present application.
In the embodiment of the application, the server determines the standard water demand of the crops according to the climate data of the irrigation area such as air temperature, humidity and solar radiation value through the formula, and the standard water demand of any crop growing in the irrigation area can be accurately represented only through the climate data which is easily obtained such as simple air temperature, humidity and the like. The method is easy to realize, simple to operate, high in accuracy, scientific and reasonable.
S102: the method comprises the steps that image acquisition devices corresponding to sub-irrigation areas divided in advance in the irrigation areas acquire images and send the images to a server, the server can determine the types and growth stages of crops in the sub-irrigation areas according to the acquired images, and determine first irrigation demand factors corresponding to the crops in the current growth stage.
Because the difference of water demand of different crops is large, and the difference of water demand of the same crop at different growth stages is also large, the water demand of one crop needs to be determined according to the variety of the crop, the growth stage and other factors when the water demand of the crop is determined.
In the embodiment of the application, the server can divide the irrigation area into a plurality of sub-irrigation areas in advance, and the user can plant crops with the same or different types in each sub-irrigation area. And each sub-irrigation area can be provided with an image acquisition device, and the image acquisition device is used for acquiring images in each sub-irrigation area and sending the acquired images to the server. The server can determine the type and the growth stage of the crops in each sub-irrigation area according to the received images, and determine a first irrigation demand factor corresponding to the crops in the current growth stage according to the type and the growth stage of the crops. The first irrigation demand factor corresponds to the standard water demand of the crops in each growth stage, and the corresponding first irrigation demand factors may be different in different growth stages of the crops. The server may adjust the determined standard water demand according to a first irrigation demand factor to obtain the water demand for the type of crop at each growth stage.
Specifically, after receiving the image sent by the image acquisition device, the server can determine the type and growth stage of the crop according to image recognition. Wherein the growth stage may comprise at least a seedling stage, a growth stage and a maturation stage. The server may then determine historical data from the historical data that corresponds to the current growth stage of the crop. And determining the ratio as a first irrigation demand factor corresponding to the current growth stage of the crop according to the ratio of the actual water demand of the crop at the current growth stage in the historical data to the standard water demand.
In one embodiment, the user can also upload information such as the variety and the growth stage of the crop to the server by himself or herself through the terminal. Or, when the server cannot perform image recognition according to the acquired image or the image recognition effect is poor, the server may send a request to the terminal, so that the user uploads information such as the type and growth stage of the crop according to the request.
Furthermore, the growth period and water demand of different types of crops are different due to different growth periods. Therefore, for different kinds of crops, the growth stages of the crops can be divided into different periods according to the growth habits of the crops, which is not limited in the present application. For example, the growth stage of wheat can be divided into emergence stage, overwintering stage, green-turning stage, heading stage, maturation stage, etc.
In the embodiment of the application, the server can adjust the standard water demand according to the determined type and growth stage of the crop, so that the adjusted water demand can adapt to the biological characteristics of the current crop. The method for determining the water demand of the crops according to the biological characteristics of the crops can fully consider the difference between different crops, and accurately judge the water demand of a specific crop at the current growth stage according to different types of crops and different growth stages of the crops so as to meet the growth requirement of the crops and be beneficial to the good growth of the crops.
S103: and the sensors of the sub-irrigation areas respectively acquire the relative water content of the soil of the sub-irrigation areas and send the relative water content to the server. And the server respectively determines a second irrigation demand factor corresponding to each sub-irrigation area according to the relative soil moisture content of each sub-irrigation area.
In the growth process of crops, factors such as the texture, the water content and the organic matter content of soil for growing the crops also influence the water demand of the crops. That is, even if crops of the same kind are in the same growth stage, water demand varies depending on the soil.
In embodiments of the present application, each irrigation area may have one or more sensors, respectively, for collecting relative water content data of the soil. The server can acquire the relative water content data of the soil acquired by the sensors of the sub-irrigation areas, and determine second irrigation demand factors corresponding to the sub-irrigation areas according to the acquired data. Wherein the second irrigation requirement factor corresponds to a standard water demand of the crop at each sub-irrigation area. And if the soil of each sub-irrigation area is different, the second irrigation demand factor is different, and correspondingly, the water demand of the crops in each sub-irrigation area is also different. The server can adjust the determined standard water demand according to the second irrigation demand factor to obtain the water demand required by the crops for growing in different soils in each sub-irrigation area.
Specifically, the server may determine the soil type corresponding to the irrigation area according to the geographical location of the irrigation area and the pre-stored soil type corresponding to the geographical location. The data of organic matter content, maximum water quantity capable of being carried and the like in different types of soil are different. The soil types may include at least black soil, laterite, and loess, among others. And then, the server can determine the absolute sufficient critical soil moisture content of the soil corresponding to the soil type of the irrigation area and the critical soil moisture content of the soil moisture stress according to the soil type of the irrigation area and the characteristics of the soil type based on the pre-stored corresponding relation. The server can obtain according to The relative water content of the soil corresponding to each sub-irrigation area in the obtained irrigation area is determined by
And respectively determining a second irrigation demand factor corresponding to each sub-irrigation area. Wherein k is2Is a second irrigation requirement factor, x is the relative water content of the soil, x1Critical soil moisture content, x, for absolute and sufficient soil moisture2The critical soil water content is the critical soil water content of soil water stress, and alpha is a third preset coefficient. x is the number of1、x2Namely the data determined according to the soil type of the irrigation area and the pre-stored corresponding relation.
In the embodiment of the application, the server divides the irrigation area into the plurality of sub-irrigation areas, and can determine the water demand of the crops in each sub-irrigation area according to the relative water content of the soil in each sub-irrigation area. The method fully considers the property of the soil where the crops grow, determines the water demand of the crops according to the actual growing environment of the crops, is more accurate and scientific, and is beneficial to fully utilizing water resources.
S104: and the server determines the actual water demand of the crops according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor, and sends irrigation instructions to irrigation control equipment corresponding to the irrigation area according to the actual water demand.
The server obtains standard water demand according to climate data of an irrigation area, obtains a first irrigation demand factor according to different types of crops and different growth stages of the crops, and obtains a second irrigation demand factor according to soil properties of crop growth. The server may then determine the actual water demand of the crop based on the determined standard water demand and the first and second irrigation demand factors. Specifically, the server may be based on W1＝W0*k1*k2And determining the actual water demand of the crops. Wherein, W1For actual water demand, W0Is a standard water demand, k1Is the first irrigation requirement factor, k2Is the second irrigation demand factor。
The server divides the irrigation area into a plurality of sub-irrigation areas in advance, determines the actual water demand of the crops in each sub-irrigation area according to the types of the crops planted in each sub-irrigation area, the growth stage of the crops and the relative water content of soil, and sends irrigation instructions to irrigation control equipment corresponding to the irrigation areas. The irrigation instructions may include an identification of each sub-irrigation area and an actual water demand for each sub-irrigation area. The irrigation control equipment can irrigate the sub-irrigation areas according to the received irrigation instructions sent by the server.
In the embodiment of the application, the server can perform targeted irrigation on the crops planted in each sub-irrigation area according to the types, the growth stages and the relative water content of the soil of the crops. Therefore, the water quantity meeting the growth requirement of the crops can be provided for the crops according to the actual growth conditions of the crops, so that the crops can grow under sufficient and proper water supply conditions, and the good growth of the crops is facilitated. Moreover, the calculation mode effectively improves the utilization rate of water resources, so that the water resources can be utilized to the maximum extent, the waste of the water resources is avoided, scientific water utilization and reasonable irrigation are realized. In addition, through the automatic irrigation of irrigation controlgear, reducible dependency to the human factor improves degree of automation to, machine irrigation can realize more accurate irrigation, and is more scientific and reasonable.
Further, the irrigation instruction sent by the server to the irrigation control device may include actual water consumption corresponding to the crops in each sub-irrigation area, and may further include irrigation start time and irrigation duration of each sub-irrigation area. In particular, the server may be based on
The irrigation start time is determined. Wherein T represents the time difference between the irrigation starting time and the current time, E is the difference value between the current soil humidity and the preset soil humidity of each sub-irrigation area, W 1A is an adjustable first preset coefficient for the actual water demand of each sub-irrigation area, and the preset soil humidity is based on the pre-stored soil type and crop speciesAnd determining the corresponding relation between the class and the preset soil humidity, and indicating the optimal soil humidity suitable for the growth of crops in the corresponding soil type. And then, the server can determine the irrigation duration according to the actual water demand and the irrigation mode corresponding to each sub-irrigation area. Wherein, the irrigation mode comprises drip irrigation, sprinkling irrigation and the like, and the irrigation duration is related to the water flow of the irrigation mode.
According to
It can be known that the smaller the current soil humidity of each sub-irrigation area is, the more serious the drought degree of the soil is, the larger the difference between the current soil humidity of each sub-irrigation area and the preset soil humidity is, i.e., the larger E is, and the shorter T (i.e., the time difference between the irrigation time and the current time) is, the earlier the irrigation time is.
Furthermore, if the irrigation area rains to supply water to the crops, the server can adjust the actual water demand or irrigation time of the crops according to the rainfall in the irrigation area.
In one embodiment, the server may determine a historical average rainfall for the irrigation area over a preset time period based on historical rainfall data for the sub-irrigation area over the preset time period. And determining rainfall information according to the product of the historical average rainfall and the current rainfall probability, and determining the value of a according to the preset corresponding relation between the rainfall information and a.
For example, if the server determines that the actual water demand corresponding to a certain sub-irrigation area in 7/1/2019 is 10mm, then to determine the irrigation time, the historical average rainfall of 7/1/may be determined according to the actual rainfall of the sub-irrigation area in 7/1/7 in the historical data. And determining rainfall information according to the product of the determined historical average rainfall and the probability of rainfall in 2019, 7, month and 1. And determining the value of a according to the corresponding relation between the preset rainfall information and a.
In this embodiment, the irrigation control device may perform targeted irrigation on each sub-irrigation area according to the actual water demand and the irrigation time corresponding to each sub-irrigation area in the irrigation instruction sent by the server. The irrigation mode can respectively carry out targeted irrigation according to the actual growth condition of the crops in each sub-irrigation area and the drought degree of the soil in each sub-irrigation area. The irrigation areas are irrigated respectively, and the mandatory requirement of simultaneous irrigation is not met, so that crops can grow healthily under the condition of adapting to the soil humidity required by the crops, and the utilization rate of water resources can be improved on the basis of meeting the crop growth requirements.
In addition, before the server sends the irrigation instruction to the irrigation control equipment, the residual water quantity of the water resource which can be controlled by the irrigation control equipment can be determined according to the water level meter corresponding to the irrigation control equipment, so that the residual water quantity can be reasonably distributed according to the actual water demand of each sub-irrigation area under the condition that the residual water quantity is insufficient.
In one embodiment, each sub-irrigation area within an irrigation area is planted a different type of crop. The server can determine the preset drought resisting types of crops corresponding to various crops according to the varieties of different crops. Wherein the preset drought resistant types of the crops at least comprise drought resistant types, common types and drought intolerant types. The server can adjust the previously determined actual water demand according to the corresponding preset proportion according to the crop drought resisting type corresponding to each sub-irrigation area, and returns the adjusted water demand of each sub-irrigation area to the irrigation control equipment. For example, the water demand of drought tolerant, normal, and non-drought tolerant crops can be reduced to 70%, 80%, and 90%, respectively.
In another embodiment, each sub-irrigation area within the irrigation area is planted with the same type of crop. The server can adjust the actual water demand of each sub-irrigation area determined previously according to the preset proportion according to the sequence from high to low of the relative water content of the soil corresponding to each sub-irrigation area to be irrigated, and returns the adjusted actual water demand of each sub-irrigation area to the irrigation control equipment.
It should be noted that, in other embodiments not presented in this application, the server may also allocate the remaining water resource according to the distance between each sub-irrigation area and other water sources, and so on, and this application does not limit how to allocate the remaining water resource.
Fig. 2 is a schematic structural diagram of a server provided in the embodiment of the present application, which specifically includes:
the receiver 210 is used for receiving images acquired by image acquisition equipment of each sub-irrigation area, information sent by a user terminal and the relative water content of soil corresponding to the sub-irrigation areas acquired by the sensors according to the sub-irrigation areas divided into the irrigation areas in advance;
the processor 220 is used for determining the standard water demand of crops in an irrigation area according to the climate data of the irrigation area, wherein the climate data at least comprises air temperature, air humidity and solar radiation value; determining the type and the growth stage of crops in each sub-irrigation area according to a plurality of sub-irrigation areas which are divided into the irrigation areas in advance, images acquired by image acquisition equipment of each sub-irrigation area or information sent by a user terminal, and determining a first irrigation demand factor corresponding to the crops in the growth stage, wherein the first irrigation demand factor corresponds to the standard water demand of the crops in the corresponding growth stage; the growth stage comprises a seedling stage, a growth stage and a maturation stage; respectively determining a second irrigation demand factor corresponding to each sub-irrigation area according to the relative soil moisture content obtained through the sensor and corresponding to the sub-irrigation areas, wherein the second irrigation demand factor corresponds to the standard water demand of crops in the corresponding sub-irrigation areas; determining the actual water demand of the crops in the corresponding growth stages and the corresponding sub-irrigation areas according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor;
And the emitter 230 is used for sending an irrigation instruction to the irrigation control equipment corresponding to the irrigation area according to the actual water demand, wherein the irrigation instruction comprises a sub-irrigation area identifier and the actual water demand of the sub-irrigation area.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A method of irrigation, comprising:
the method comprises the following steps that a server determines the standard water demand of crops in an irrigation area according to climate data of the irrigation area, wherein the climate data at least comprise air temperature, air humidity and a solar radiation value;
receiving images acquired by image acquisition equipment of each sub-irrigation area according to a plurality of sub-irrigation areas which are divided into the irrigation areas in advance, determining the types and the growth stages of crops of each sub-irrigation area according to the images or information sent by a user terminal, and determining a first irrigation demand factor corresponding to the growth stage of the crops, wherein the first irrigation demand factor corresponds to the standard water demand of the crops in the corresponding growth stage; the growth stage comprises a seedling stage, a growth stage and a maturation stage;
Respectively determining second irrigation demand factors corresponding to the sub-irrigation areas according to the relative soil moisture content obtained through the sensor, wherein the relative soil moisture content is corresponding to the sub-irrigation areas, and the second irrigation demand factors correspond to the standard water demand of crops in the corresponding sub-irrigation areas;
determining the actual water demand of the crops in the corresponding growth stages and the corresponding sub-irrigation areas according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor, and sending irrigation instructions to irrigation control equipment corresponding to the irrigation areas according to the actual water demand, wherein the irrigation instructions comprise sub-irrigation area identifiers and the actual water demand of the sub-irrigation areas;
the irrigation instruction further comprises the irrigation starting time and the irrigation duration of each sub-irrigation area;
and the server is according to
Determining an irrigation start time, wherein T represents a time difference between the irrigation start time and a current time, and E is a current soil moistureDifference from the preset soil humidity, W1In order to meet the actual water demand, a is a first preset coefficient, the value of a is adjustable, and the preset soil humidity is related to the soil type;
determining the irrigation duration according to the actual water demand of the sub-irrigation area and the irrigation mode, wherein the irrigation duration is related to the water flow of the irrigation mode, and the irrigation mode comprises drip irrigation and spray irrigation;
The method further comprises the following steps:
the server determines the residual water amount corresponding to the irrigation control equipment according to the water level meter corresponding to the irrigation control equipment;
and under the condition that the residual water amount is smaller than the determined actual water demand of each irrigation area, adjusting the determined actual water demand of each sub-irrigation area according to a preset proportion according to the sequence from high to low of the relative water content of the soil corresponding to each sub-irrigation area, and sending the adjusted actual water demand of each sub-irrigation area to the irrigation control equipment.
2. The method according to claim 1, characterized in that the first preset coefficient a is determined by:
determining historical average rainfall of the sub-irrigation area in a preset time period according to historical rainfall data of the sub-irrigation area in the preset time period;
and determining the value of a according to the corresponding relation between preset rainfall information and a, wherein the rainfall information is determined according to the product of the historical average rainfall and the current rainfall probability.
3. The method according to claim 1, wherein determining a standard water demand for the crop in the irrigated area comprises:
According to W0＝2.3*10-3*Ra(Tmean+17.8)(Tmax-Tmin)0.5+lnb(HmaxHmin) determining the standard water demand of the crop, wherein W0 is the standard water demand of the crop, Tmax is the daily maximum air temperature, and Tmin isThe daily minimum air temperature Tmean air temperature, Ra is the solar radiation value, HmaxMaximum humidity of day, HminB is a second predetermined coefficient.
4. The method according to claim 1, wherein determining the first irrigation demand factor for the crop at the growth stage comprises:
and determining a first irrigation demand factor corresponding to the crop in the growth stage according to the ratio of the actual water demand of the crop to the standard water demand in the historical data corresponding to the growth stage of the crop.
5. The method according to claim 1, wherein the determining the second irrigation demand factor corresponding to each sub-irrigation region according to a plurality of sub-irrigation regions which are pre-divided into the irrigation region and the relative soil water content corresponding to each sub-irrigation region acquired by a sensor respectively comprises:
according to the pre-stored soil type of the irrigation area and the relative water content of the soil corresponding to each pre-divided sub-irrigation area 
Respectively determining a second irrigation demand factor corresponding to each sub-irrigation area, wherein k2Is a second irrigation requirement factor, x is the relative water content of the soil, x1Critical soil moisture content, x, for absolute and sufficient soil moisture2Critical soil water content for soil water stress, alpha is a third preset coefficient, x1、x2Based on prestored soil type and x1、x2The corresponding relation between the soil types is determined, and the soil types comprise black soil, red soil and loess.
6. The method according to claim 1, wherein determining the actual water demand of the crop based on the standard water demand and the first and second irrigation demand factors comprises:
according to W1＝W0*k1*k2Determining the actual water demand of the crop, wherein W1For actual water demand, W0Is a standard water demand, k1Is the first irrigation requirement factor, k2Is the second irrigation requirement factor.
7. The method of claim 1, further comprising:
determining crop drought resistance types corresponding to corresponding types of crops according to the types of the crops in each sub-irrigation area, wherein the crop drought resistance types at least comprise a drought tolerance type, a common type and a drought intolerance type, and each sub-irrigation area corresponds to the same type of crops;
The server determines the residual water amount corresponding to the irrigation control equipment according to the water level gauge corresponding to the irrigation control equipment;
and under the condition that the residual water amount is smaller than the determined actual water demand of each irrigation area, adjusting the determined actual water demand according to a preset proportion according to the crop drought resistance type of crops in each sub-irrigation area, and sending the adjusted water demand of each sub-irrigation area to the irrigation control equipment.
8. A server, comprising:
the receiver is used for receiving images acquired by image acquisition equipment of each sub-irrigation area, information sent by a user terminal and relative soil moisture content corresponding to the sub-irrigation areas acquired by the sensor according to the sub-irrigation areas divided into the irrigation areas in advance;
the processor is used for determining the standard water demand of crops in an irrigation area according to the climate data of the irrigation area, wherein the climate data at least comprises air temperature, air humidity and a solar radiation value; determining the type and the growth stage of crops in each sub-irrigation area according to a plurality of sub-irrigation areas which are divided into the irrigation areas in advance, images acquired by image acquisition equipment of each sub-irrigation area or information sent by a user terminal, and determining a first irrigation demand factor corresponding to the crops in the growth stage, wherein the first irrigation demand factor corresponds to the standard water demand of the crops in the corresponding growth stage; the growth stage comprises a seedling stage, a growth stage and a maturation stage; respectively determining a second irrigation demand factor corresponding to each sub-irrigation area according to the relative soil moisture content obtained through the sensor and corresponding to the sub-irrigation areas, wherein the second irrigation demand factor corresponds to the standard water demand of crops in the corresponding sub-irrigation areas; determining the actual water demand of the crops in the corresponding growth stages and the corresponding sub-irrigation areas according to the standard water demand, the first irrigation demand factor and the second irrigation demand factor;
The emitter is used for sending an irrigation instruction to irrigation control equipment corresponding to the irrigation area according to the actual water demand, wherein the irrigation instruction comprises a sub-irrigation area identifier and the actual water demand of the sub-irrigation area;
the irrigation instructions further comprise irrigation starting time and irrigation duration of each sub-irrigation area;
and the server is according to
Determining irrigation starting time, wherein T represents the time difference between the irrigation starting time and the current time, E is the difference value between the current soil humidity and the preset soil humidity, and W is1In order to meet the actual water demand, a is a first preset coefficient, the value of a is adjustable, and the preset soil humidity is related to the soil type;
determining the irrigation duration according to the actual water demand of the sub-irrigation area and the irrigation mode, wherein the irrigation duration is related to the water flow of the irrigation mode, and the irrigation mode comprises drip irrigation and spray irrigation;
the method further comprises the following steps:
the server determines the residual water amount corresponding to the irrigation control equipment according to the water level meter corresponding to the irrigation control equipment;
and under the condition that the residual water amount is smaller than the determined actual water demand of each irrigation area, adjusting the determined actual water demand of each sub-irrigation area according to a preset proportion according to the sequence from high to low of the relative water content of the soil corresponding to each sub-irrigation area, and sending the adjusted actual water demand of each sub-irrigation area to the irrigation control equipment.
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| CN111869542A (en) * | 2020-05-22 | 2020-11-03 | 宇龙计算机通信科技(深圳)有限公司 | Plant irrigation method and device, storage medium and water faucet |
| CN111492959B (en) * | 2020-06-02 | 2022-04-26 | 山东深蓝智谱数字科技有限公司 | Irrigation method and equipment based on Internet of things |
| DE102020119521B4 (en) * | 2020-07-23 | 2024-02-29 | Einhell Germany Ag | Automatic irrigation of an area |
| TWI824250B (en) * | 2021-05-27 | 2023-12-01 | 中華電信股份有限公司 | Farm irrigation method and farm irrigation system |
| CN113229123A (en) * | 2021-06-02 | 2021-08-10 | 湖北工程学院 | Intelligent irrigation method, device and equipment for crops and storage medium |
| CN114298553A (en) * | 2021-12-28 | 2022-04-08 | 广州市中景园林环保工程有限公司 | Landscaping system |
| CN116542428B (en) * | 2023-07-05 | 2023-09-26 | 中国科学院地理科学与资源研究所 | Regional irrigation water demand estimation method and device |
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